Igneous Rock Scientific Method

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I Problem/Purpose/Question

• How do Igneous Rocks Form?

II Hypothesis

• The spoon with the slower cooling will have larger crystals.

III Materials

• 2 metal spoons
• 1 cup
• 4 magnifying glasses
• 2 candles
• 5-10 napkins
• 1 lump of clay
• 1/8 teaspoon of salol
• safety goggles
• 1 ice cube

IV Procedure

Part 1

1. Place 1/8 teaspoon of salol on to one of the metal spoons.
2. Melt the salol by holding the spoon three centimeters above one of the lighted candles.
3. Remove the spoon from the flame and let it cool with the handle in the clay.
4. Add a few grains of salol to the salol solution.
5. Make sure the spoon stays level, and look at the formed cystals.

Part 2

1. Repeat steps 1 and 2.
2. Place solution on block of ice.
3. Add salol grains to solution.
4. Observe crystals.

V Data/Observations

Part 1 Observations

• The crystals which I observed were clear and white.
• Some crystals were fully formed and some weren't.
• The luster was clear and somewhat shiny, and bumpy, but smooth.

Part 2 Observations

• The crystals cooled a lot slower.
• The texture was pretty smooth cold and white.
• The luster was dull.

VI CER a.k.a Claim/Evidence/Reasoning

• Finally, the crystal that cooled at room temperature